Add a variant of the "sunwait" program, used to calculate sunset and
sunrise (usefull in semi automatic astro-photography or home automation).
With big help from leonardo.


(martin)

Sunwait is a small program for calculating sunrise and sunset,
as well as civil, nautical and astronimical twilight.

It has features that make it usefull for home automation
tasks.

# $NetBSD: Makefile,v 1.1 2019/01/16 14:43:22 martin Exp $

DISTNAME=	sunwait-0.8
CATEGORIES=	misc
MASTER_SITES=	${MASTER_SITE_GITHUB:=klada/}

MAINTAINER=	martin@NetBSD.org
HOMEPAGE=	https://github.com/klada/sunwait
COMMENT=	Calculate sunrise, sunset and twilight
LICENSE=	gnu-gpl-v2

USE_LANGUAGES+=	c++11

.include "../../mk/bsd.pkg.mk"

@comment $NetBSD: PLIST,v 1.1 2019/01/16 14:43:22 martin Exp $
bin/sunwait

$NetBSD: distinfo,v 1.1 2019/01/16 14:43:22 martin Exp $

SHA1 (sunwait-0.8.tar.gz) = eed1453e288d03d200d4f74634324a343434f426
RMD160 (sunwait-0.8.tar.gz) = ffad86c063eac4952141016fde056056d44963b4
SHA512 (sunwait-0.8.tar.gz) = 974aec925e08d42f6b9d617cd033ab21af314b04a0bab100f9b473e038df7eb65a86de2240ef2d5308af5385c929607d591c6f7b738925622e38040af6368166
Size (sunwait-0.8.tar.gz) = 20302 bytes
SHA1 (patch-Makefile) = 63276adb2587a251d9bb896ec82cd5ba6b3d6c07
SHA1 (patch-sunriset.cpp) = 759aa1f2c0301f8fab3a264167d25a077ed205ee
SHA1 (patch-sunwait.cpp) = cf5b2251a4b0de5e95cdbd06a432824b623df42b

$NetBSD: patch-Makefile,v 1.1 2019/01/16 14:43:22 martin Exp $

- Use CC instead of C to specify the C compiler and do not hardcode gcc
- Honors user's {C,LD}FLAGS
- Make the install target more flexible

--- Makefile.orig	2015-09-20 14:07:55.000000000 +0000
+++ Makefile
@@ -5,23 +5,29 @@
 #
 
 
-C=gcc
-CFLAGS=-c -Wall 
-LDFLAGS= -lm -lstdc++
+CC=c++
+CFLAGS+=-c -Wall -D__linux__
+LDFLAGS+= -lm -lstdc++
 SOURCES=sunwait.cpp sunriset.cpp print.cpp sunwait.h sunriset.h print.h
 OBJECTS=$(SOURCES:.cpp=.o)
 EXECUTABLE=sunwait
 
+PREFIX?=	/usr
+
+INSTALL_PROGRAM?=	install -m 755
+INSTALL_PROGRAM_DIR?=	install -d -m 755
+
 all: $(SOURCES) $(EXECUTABLE)
 	
 $(EXECUTABLE): $(OBJECTS)
-	$(C) $(OBJECTS) -o $@ $(LDFLAGS)
+	$(CC) $(OBJECTS) -o $@ $(LDFLAGS)
 
 .cpp.o:
-	$(C) $(CFLAGS) $< -o $@
+	$(CC) $(CFLAGS) $< -o $@
 
 clean:
 	rm -f *.o sunwait
 
 install:
-	install -D -m 755 sunwait $(DESTDIR)/usr/bin/sunwait
+	${INSTALL_PROGRAM_DIR} $(DESTDIR)$(PREFIX)/bin
+	${INSTALL_PROGRAM} sunwait $(DESTDIR)$(PREFIX)/bin/sunwait

$NetBSD: patch-sunriset.cpp,v 1.1 2019/01/16 14:43:22 martin Exp $

Use fabs() instead of integer abs() for double values.

--- sunriset.cpp.orig	2015-09-20 16:07:55.000000000 +0200
+++ sunriset.cpp	2018-07-19 14:17:06.794662715 +0200
@@ -92,7 +92,7 @@
   /* compute the diurnal arc that the sun traverses to reach the specified altitide altit: */
   double cost = (sind(altitude) - sind(pRun->latitude) * sind(sdec)) / (cosd(pRun->latitude) * cosd(sdec));
 
-  if (abs(cost) < 1.0)
+  if (fabs(cost) < 1.0)
     diurnalArc = 2*acosd(cost)/15.0;    /* Diurnal arc, hours */
   else if (cost>=1.0)
     diurnalArc =  0.0; // Polar Night

$NetBSD: patch-sunwait.cpp,v 1.1 2019/01/16 14:43:22 martin Exp $

Fix typo that causes a warning from newer gcc.

--- sunwait.cpp.orig	2015-09-20 16:07:55.000000000 +0200
+++ sunwait.cpp	2018-07-19 14:15:25.334426961 +0200
@@ -661,7 +661,7 @@
     if (pRun->debug == ONOFF_ON) printf ("Debug: argv[%d]: >%s<\n", i, arg);
 
     // Strip any hyphen from arguments, but not negative signs of numbers
-    if (arg[0] == '-' && arg[1] != '\0' && !isdigit(arg[1])) *arg++;
+    if (arg[0] == '-' && arg[1] != '\0' && !isdigit(arg[1])) arg++;
 
     // Normal help or version info
          if   (!strcmp (arg, "v")             ||